A065716 - cp's OEIS frontend

A065716 Number of 5's in decimal expansion of 2^n.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	0
25	2
26	0
27	0
28	2
29	1
30	0
31	0
32	0
33	2
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	1
43	0
44	1
45	1
46	0
47	2
48	1
49	2
50	1
51	2
52	2
53	1
54	1
55	0
56	2
57	4
58	1
59	2
60	2
61	2
62	0
63	2
64	2
65	0
66	0
67	3
68	5
69	5
70	1
71	0
72	1
73	1
74	3
75	2
76	4
77	3
78	3
79	2
80	1
81	3
82	3
83	2
84	1
85	3
86	4
87	4
88	3
89	1
90	1
91	3
92	4
93	1
94	3
95	2
96	4
97	5
98	5
99	2
100	2

[0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1, 1, 1, 0, 0, 0, 2, 0, 0, 2, 1, 0, 0, 0, 2, 0, 1, 0, 1, 0, 3, 1, 4, 1, 0, 1, 1, 0, 2, 1, 2, 1, 2, 2, 1, 1, 0, 2, 4, 1, 2, 2, 2, 0, 2, 2, 0, 0, 3, 5, 5, 1, 0, 1, 1, 3, 2, 4, 3, 3, 2, 1, 3, 3, 2, 1, 3, 4, 4, 3, 1, 1, 3, 4, 1, 3, 2, 4, 5, 5, 2, 2]

cp's OEIS Frontend

A065716 Number of 5's in decimal expansion of 2^n.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	0
25	2
26	0
27	0
28	2
29	1
30	0
31	0
32	0
33	2
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	1
43	0
44	1
45	1
46	0
47	2
48	1
49	2
50	1
51	2
52	2
53	1
54	1
55	0
56	2
57	4
58	1
59	2
60	2
61	2
62	0
63	2
64	2
65	0
66	0
67	3
68	5
69	5
70	1
71	0
72	1
73	1
74	3
75	2
76	4
77	3
78	3
79	2
80	1
81	3
82	3
83	2
84	1
85	3
86	4
87	4
88	3
89	1
90	1
91	3
92	4
93	1
94	3
95	2
96	4
97	5
98	5
99	2
100	2

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	0
25	2
26	0
27	0
28	2
29	1
30	0
31	0
32	0
33	2
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	1
43	0
44	1
45	1
46	0
47	2
48	1
49	2
50	1
51	2
52	2
53	1
54	1
55	0
56	2
57	4
58	1
59	2
60	2
61	2
62	0
63	2
64	2
65	0
66	0
67	3
68	5
69	5
70	1
71	0
72	1
73	1
74	3
75	2
76	4
77	3
78	3
79	2
80	1
81	3
82	3
83	2
84	1
85	3
86	4
87	4
88	3
89	1
90	1
91	3
92	4
93	1
94	3
95	2
96	4
97	5
98	5
99	2
100	2

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	0
25	2
26	0
27	0
28	2
29	1
30	0
31	0
32	0
33	2
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	1
43	0
44	1
45	1
46	0
47	2
48	1
49	2
50	1
51	2
52	2
53	1
54	1
55	0
56	2
57	4
58	1
59	2
60	2
61	2
62	0
63	2
64	2
65	0
66	0
67	3
68	5
69	5
70	1
71	0
72	1
73	1
74	3
75	2
76	4
77	3
78	3
79	2
80	1
81	3
82	3
83	2
84	1
85	3
86	4
87	4
88	3
89	1
90	1
91	3
92	4
93	1
94	3
95	2
96	4
97	5
98	5
99	2
100	2